Hello, I've several installations with different config and usage on 1.8.21 and no problem so far. I found one installation on a cluster of 6 servers, which all of them had one cpu core stuck at 100% and Idle_pct lower than 10. I've played with nproc and nbthread and other values with no luck so upgraded from 1.8.21 to 1.8.21-ba3abe-12 and it was the same. After comparing other installations with this one found that this is the only cluster with allow-0rtt enabled. removed allow-0rtt from bind options and it didn't happen in last 10 days!
Hope it helps to have more stable 1.8.22 :) Sincerely, Amin Shayan
